The Crane

Climb to the top of the crane and pull the level on the right down to trigger the backup motor. Then climb back down and go up to the cliff and talk to the Crane Operator. Now climb back down again and talk to the Baker on the right, solving his puzzle (the middle orange bun is wrong) so you receive a bun as a reward. Give this bun to the man behind the red window at the bottom. Talk to the man in the yellow house, then the lady above, then the man and then the woman again. Give the can opener to the man.

Climb back up into the crane and click on each of the locals in turn to start the motor. Quickly use the controls to move the dome down and to the right. Click on the locals again as needed until the dome covers The Lightwell. Then climb down from the crane, up to the right, and down through the hole just right of the Lightwell.